<template>
  <div>
    <!-- 商品分类导航 -->
    <TypeNav></TypeNav>
    
    <!--list-content-->
    <div class="main">
      <div class="py-container">
        <!--面包屑导航-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <li class="with-x"  v-show="searchParams.categoryName">{{searchParams.categoryName}}
                <i @click="removeCategoryName">×</i></li>
            <li class="with-x"  v-show="searchParams.keyword" >{{searchParams.keyword}}
                <i @click="removeKeyword">×</i></li>
            <li class="with-x"  v-show="searchParams.trademark" >{{trademarkName}}
                <i  @click="removeTrademark">×</i></li>
            <li class="with-x" v-for="(prop,index) in searchParams.props" :key="prop.id" >{{prop | fmtPropName}}
                <i @click="removeAttrValue(index)">×</i></li>
            <!-- <li class="with-x">{{trademarkName}}<i>×</i></li> -->
            <!-- <li class="with-x">华为<i>×</i></li>
            <li class="with-x">OPPO<i>×</i></li> -->
          </ul>
        </div>
        <!--selector-->
        <SearchSelector  @get-trademark = "saveTrademark"  @get-attr="saveAttrValue"></SearchSelector>

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li :class="{active:!isPrice}" @click="changeOrder(1)">
                  <a href="javascript:;">综合<span v-show="!isPrice"  class="iconfont"
                       :class="{'icon-jiantou_xiangshang':isUp,'icon-jiantou_xiangxia':!isUp}"></span></a>
                </li>
                <li :class="{active:isPrice}" @click="changeOrder(2)">
                  <a href="javascript:;">价格<span  v-show="isPrice" class="iconfont" 
                       :class="{'icon-jiantou_xiangshang':isUp,'icon-jiantou_xiangxia':!isUp}"></span></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品列表 -->  <!-- <img v-lazy="goods.defaultImg" /> 图片懒加载-->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="good in goodsList" :key="good.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link  :to="`/detail/` +good.id " 
                      ><img v-lazy="good.defaultImg"
                    /></router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>&ensp;{{good.price}}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <router-link
                      :to="`/detail/${good.id}`"
                      :title="good.title"
                      >{{good.title}}</router-link
                    >
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a
                      href="success-cart.html"
                      target="_blank"
                      class="sui-btn btn-bordered btn-danger"
                      >加入购物车</a
                    >
                    <a href="javascript:void(0);" class="sui-btn btn-bordered"
                      >收藏</a
                    >
                  </div>
                </div>
              </li>
            
            </ul>
          </div>
          <!-- 分页器 -->   
          <Pagination 
              :total="total" 
              :currentPage="searchParams.pageNo"   
              :pageSize="searchParams.pageSize" 
              :continueNo="5" 
              @changePageNo = "getPageNo"
            ></Pagination>
        
        </div>
        <!--hotsale-->
        <div class="clearfix hot-sale">
          <h4 class="title">热卖商品</h4>
          <div class="hot-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-4">
                <div class="list-wrap">
                  <div class="p-img">
                    <img src="./images/like_01.png" />
                  </div>
                  <div class="attr">
                    <em>Apple苹果iPhone 6s (A1699)</em>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>4088.00</i>
                    </strong>
                  </div>
                  <div class="commit">
                    <i class="command">已有700人评价</i>
                  </div>
                </div>
              </li>
              <li class="yui3-u-1-4">
                <div class="list-wrap">
                  <div class="p-img">
                    <img src="./images/like_03.png" />
                  </div>
                  <div class="attr">
                    <em>金属A面，360°翻转，APP下单省300！</em>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>4088.00</i>
                    </strong>
                  </div>
                  <div class="commit">
                    <i class="command">已有700人评价</i>
                  </div>
                </div>
              </li>
              <li class="yui3-u-1-4">
                <div class="list-wrap">
                  <div class="p-img">
                    <img src="./images/like_04.png" />
                  </div>
                  <div class="attr">
                    <em>256SSD商务大咖，完爆职场，APP下单立减200</em>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>4068.00</i>
                    </strong>
                  </div>
                  <div class="commit">
                    <i class="command">已有20人评价</i>
                  </div>
                </div>
              </li>
              <li class="yui3-u-1-4">
                <div class="list-wrap">
                  <div class="p-img">
                    <img src="./images/like_02.png" />
                  </div>
                  <div class="attr">
                    <em>Apple苹果iPhone 6s (A1699)</em>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>4088.00</i>
                    </strong>
                  </div>
                  <div class="commit">
                    <i class="command">已有700人评价</i>
                  </div>
                </div>
              </li>
            </ul>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from './SearchSelector'
import {mapGetters} from 'vuex'
export default {
  name: "Search",
  components:{
      SearchSelector,
  },
  //准备要搜索的数据
  data() {
    return {
      //面包屑导航中显示的数据内容，其实就是`searchParams`中的数据项
      searchParams: {
        category1Id: "", //一级分类ID
        category2Id: "",  //二级分类ID
        category3Id: "",  //三级分类ID
        categoryName: "",  //分类名称
        keyword: "",   //搜索关键字
        props: [],   //商品属性 
        trademark: "",  //品牌单选
        order: "1:asc",  //排序方式 :1综合 2：价格  asc上升 desc下降
        pageNo: 1,  //页码
        pageSize: 3,  //每页显示的数量
      },
    };
  },
  
  computed:{
        ...mapGetters('search',['goodsList','total']),//attrsList  goodsList  trademarkList  total（页码）
        trademarkName(){
          const {trademark} = this.searchParams;
         // console.log(typeof trademark); //1:小米  string类型，切割
          return trademark?trademark.split(":")[1]:"";
        },

        //判断综合或者价格高亮, 1:综合高亮，2：价格高亮
        isPrice(){
           return  this.searchParams.order.split(":")[0] == 2
        },
        //判断箭头向上或者向下
        isUp(){
           return this.searchParams.order.split(":")[1] === "asc" //向上
        }
  },
   watch:{
        $route:{
             // 不需要开启深度监视 因为每一次路由的变化 都会生成一个新的路由数据对象 $route.query
             immediate:true,// 第一次监视的时候就要触发
             handler(){
                  // 重置路由传递过来的搜索参数 因为三级导航参数 只能传递一个给后台
                //   this.searchParams.category1Id =undefined;
                //   this.searchParams.category2Id =undefined;
                //   this.searchParams.category3Id =undefined;
                //   this.searchParams.categoryName =undefined;
                //   this.searchParams.keyword =undefined;
                  //把上面的内容精简一下
                  Object.assign(this.searchParams,{
                          category1Id: undefined,
                            category2Id:undefined,
                            category3Id: undefined,
                            categoryName: undefined,
                            keyword: undefined,
                  })
                  // 把路由传递过来的query参数整合到searchParams中，供以后发请求使用
                  Object.assign(this.searchParams,this.$route.query)


                  //发送请求获取真正的数据
                  this.$store.dispatch('search/getSearchGoodsInfo',this.searchParams)
                
             }
        }
   },
   methods:{
        //把重复发请求的函数提出来,需要发请求的位置直接调用函数
        search(){
           //重新发送请求
            this.$store.dispatch('search/getSearchGoodsInfo',this.searchParams)
        },

        //1.移除三级导航分类名
      removeCategoryName(){
        // 单击了删除按钮后会做的事儿？
        // 1. 将当前的对应面包屑数据删除掉
        // 2. 重新发送请求 搜索数据
        // 3. 浏览器当中的路径需要变化 要不然一刷新原来删除的数据又回来了
            // this.searchParams.category1Id =undefined;
            // this.searchParams.category2Id =undefined;
            // this.searchParams.category3Id =undefined;
            // this.searchParams.categoryName =undefined;
            // this.searchParams.keyword =undefined;
            // this.$store.dispatch('search/getSearchGoodsInfo',this.searchParams)

             // 下面的这种写法，依赖着之前的watch对$route的监视
             const {keyword} = this.$route.query;
             this.$router.push({
                 name:'search',
                 query:{
                    //keyword:keyword
                    keyword
                   }
             })
      },
       //2.移除面包屑中的关键词
       removeKeyword(){
           const {query} = this.$route;
           this.$router.push({
              name:'search',
              query:{
                 ...query,
                 keyword:undefined //路由会过滤掉值为undefined的参数
              }
           })
           //触发事件，清空文本框
            this.$bus.$emit('remove-keyword');
       },

      //3.在面包屑的位置显示商品品牌trademark,(筛选手机型号的)
      saveTrademark(trademark){
           //将trademark维护到searchParams中
           this.searchParams.trademark = `${trademark.tmId}:${trademark.tmName}`

           //发请求
          //  this.$store.dispatch('search/getSearchGoodsInfo',this.searchParams)
           this.search()
      },
         
        //4.移除品牌面包屑
      removeTrademark(){
      // 所谓移除掉某个面包屑 其实就是将那个数据设置为undefined
      // 因为移除某项面包屑之后，要重新发送请求
       this.searchParams.trademark = undefined;
       // 重新发送请求
        //this.$store.dispatch('search/getSearchGoodsInfo',this.searchParams)
         this.search()
      },
       
       //5.添加售卖属性面包屑，如果下面的价格，发货地址等，在面包屑中存在的话就不添加了
      saveAttrValue(attrValue,attr){
           //searchParams.props是一个数组，是接收服务器的真正的售卖属性参数
           const prop = `${attr.attrId}:${attrValue}:${attr.attrName}`
           //console.log(prop);//430:北上广深:发货地区
           if(this.searchParams.props.indexOf(prop) === -1){
              //如果没有这个属性的话，才需要往里添加，如果已经有了，就不需要再添加了
              this.searchParams.props.push(prop)

              //重新发送请求
              //this.$store.dispatch('search/getSearchGoodsInfo',this.searchParams)
               this.search()
           }
      },
      //6.移除一个商品的售卖属性
      removeAttrValue(index){
        this.searchParams.props.splice(index,1)
        //然后重新请求数据
        //this.$store.dispatch('search/getSearchGoodsInfo',this.searchParams)
         this.search()
      },
      //7.获取传递过来的新页码
        getPageNo(current){
          // 根据新页码去更新pageNo

            this.searchParams.pageNo = current;
            //重新发送请求
            this.search()
        },
      //8.改变综合或者价格的排序，上升或者下降
      changeOrder(newNum){
          /* 
             基本思路：
             1.首先获取order中的原来的值oldNum的值，及排序的类型asc desc
             2.用最新的newNum和原来的oldNum进行比较，来判断需要不需要高亮
             3.如果两个值相同，说明单击的还是原来的按钮，此时不需要改变高亮，只需要将排序取反
          */
          /*  const oldNum = this.searchParams.order.split(':')[0]
            const  oldType = this.searchParams.order.split(':')[1] */
            const [oldNum,oldType] =this.searchParams.order.split(':')
           //8.2用传过来的数字和原来的数字进行判断
           if(oldNum == newNum){
              //说明当前高亮不需要改变，值需要改变排序状态，也就是修改order中的排序
                this.searchParams.order = `${oldNum}:${oldType === 'asc'?'desc':'asc'}`
           }else{
             this.searchParams.order= `${newNum}:desc`
           }

           //重新请求数据
           this.search()
      }
    },
    //过滤器，把对应的售卖属性加到面包屑
    filters:{
         fmtPropName(prop){
             const arr = prop.split(":");//["24","128G","机身内存"]
             return arr[2]  + ":" + arr[1];
         }
    },
    
};

/* 
    1. 准备参数 完成
 * 			将所有的请求参数放在data中的searchParams当中
 * 2. 根据参数发送请求
 * 		  1. 如果根据最新的参数去发送请求
 * 3. watch监视数据变化
 * 		  只要是vm上的数据或是vc(VueComponent)上的数据 都可以watch进行监视
 * 			当监视路由对象$route的时候，不要深度监视
 * 			因为每一次路由跳转都会生成一个新的$route
*/
</script>

<style lang="less" scoped>

.main {
  margin: 10px 0;
  .py-container {
    width: 1200px;
    margin: 0 auto;
    .bread {
      margin-bottom: 5px;
      overflow: hidden;
      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;
        li {
          display: inline-block;
          line-height: 18px;
          a {
            color: #666;
            text-decoration: none;
            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }
      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;
        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;
          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }
          &:hover {
            color: #28a3ef;
          }
        }
      }
    }
    
    .details {
      margin-bottom: 5px;
      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;
        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);
          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;
            li {
              float: left;
              line-height: 18px;
              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }
              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }
      .goods-list {
        margin: 20px 0;
        ul {
          display: flex;
          flex-wrap: wrap;
          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;
            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;
                a {
                  color: #666;
                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }
              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;
                strong {
                  font-weight: 700;
                  i {
                    margin-left: -5px;
                  }
                }
              }
              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;
                a {
                  color: #333;
                  text-decoration: none;
                }
              }
              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;
                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }
              .operate {
                padding: 12px 15px;
                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }
                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;
                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }
                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;
                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }
      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;
        .sui-pagination {
          margin: 18px 0;
          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;
            li {
              line-height: 18px;
              display: inline-block;
              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }
              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }
              &.prev {
                a {
                  background-color: #fafafa;
                }
              }
              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }
              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }
              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }
          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
    .hot-sale {
      margin-bottom: 5px;
      border: 1px solid #ddd;
      .title {
        font-weight: 700;
        font-size: 14px;
        line-height: 21px;
        border-bottom: 1px solid #ddd;
        background: #f1f1f1;
        color: #333;
        margin: 0;
        padding: 5px 0 5px 15px;
      }
      .hot-list {
        padding: 15px;
        ul {
          display: flex;
          li {
            width: 25%;
            height: 100%;
            .list-wrap {
              .p-img,
              .price,
              .attr,
              .commit {
                padding-left: 15px;
              }
              .p-img {
                img {
                  max-width: 100%;
                  vertical-align: middle;
                  border: 0;
                }
              }
              .attr {
                width: 85%;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
              }
              .price {
                font-size: 18px;
                color: #c81623;
                strong {
                  font-weight: 700;
                  i {
                    margin-left: -5px;
                  }
                }
              }
              .commit {
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;
              }
            }
          }
        }
      }
    }
  }
}
</style>